Bare-legged Swiftlet vs

Aerodramus nuditarsus compared with Usnea cornuta

Key Differences

• Bare-legged Swiftlet is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	Bare-legged Swiftlet
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Apodiformes (Apodiformes)	Lecanorales (Lecanorales)
Family	Apodidae	Parmeliaceae
Genus	Aerodramus	Usnea
Species	Aerodramus nuditarsus	Usnea cornuta

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	Bare-legged Swiftlet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bare-legged Swiftlet

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway